CSV stores table data as delimited plain text that opens in spreadsheets and database tools.
CSV to XLSX converter
Convert CSV document files to XLSX with on-device browser processing. Your files never leave your device.
Your files never leave your device
Why convert CSV to XLSX?
XLSX is the standard workbook format used by Microsoft Excel and compatible spreadsheet apps.
Create an Excel workbook from a CSV table.
How to convert CSV to XLSX
Select the source file
Choose one or more CSV files from your device.
Convert in your browser
The XLSX target is selected automatically and processed with the local converter engine.
Download the result
Save the converted file directly from browser memory. No source file upload is required.